Study of the aerosol high spatial resolution variability using a mobile system, in connection with regional air quality

PhD student: Ioana POPOVICI

Aerosol particles are a quite variable component of the atmosphere affecting the air quality. From one city to another, from one season to another, aerosol sources and concentration are quite variable as well as the meteorological conditions. A multi-scale approach has to be considered to properly address their characterization and impacts. Various approaches and instrumentations are used to determine their properties, from in situ observation to remote sensing.

The main objective of the thesis is to study the aerosol variability, mainly in the Nord Pas de Calais region, using a mobile system composed of a LIDAR, a sunphotometer and particles optical counters).

The mobile system will be able to perform atmospheric vertical sounding (from 200 m to 8000m, resolution 15 m) and sunphotometer measurements (aerosol spectral optical depth) during the vehicle motion. This system will allow fast spatial exploration to measure aerosol variability at surface level and within the atmospheric column. It will be used in the framework of CaPPA and CLIMIBIO projects during regional field campaigns. Inter-city variability (Lille-Douai-Dunkerque-Paris-Brussels) and surroundings country-sides will be explored, especially during pollution peaks.

The student will be involved in the development of the mobile system, algorithmic development to retrieve aerosol properties and fields campaigns. The work will be done in partnership with CIMEL SME.

Key words
Aerosols, Air quality, Spatial variability, LIDAR, sunphotometer, Mobile system

Responsibles: P. Goloub (LOA), Stéphane Victori (CIMEL Advanced Monitoring, Paris)

Laboratories: LOA and CIMEL

Funding: Bourse CIFRE-CIMEL